Resources

 Selected Publications that use ForWarn data

• Hargrove, WW, JP Spruce, GE Gasser, FM Hoffman, 2009. Toward a national early warning system for forest disturbances using remotely sensed canopy phenology. Photogrammetric Engineering and Remote Sensing. 75: 1150 - 1156. https://www.treesearch.fs.fed.us/pubs/33669
• Hoffman, FM, RT Mills, J Kumar, SS Vulli, WW Hargrove. 2010. Geospatiotemporal data mining in an early warning system for forest threats in the United States. In: Proceedings of the 2010 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2010), July 25-30, 2010, Honolulu, Hawaii, USA. https://www.treesearch.fs.fed.us/pubs/36086
• Kumar, J., RT Mills, FM Hoffman, WW Hargrove. 2011. Parallel k-means clustering for quantitative ecoregion delineation using large data sets. Procedia Computer Science. 4: 1602 - 1611. https://www.treesearch.fs.fed.us/pubs/38489
• Spruce, JP, S Sader, RE Ryan, J Smoot, P Kuper, K Ross, D Prados, J Russell, G Gasser, R McKellip, W Hargrove. Assessment of MODIS NDVI time series data products for detecting forest defoliation by gypsy moth outbreaks. Remote Sensing of Environment. 115: 427 - 437. https://www.treesearch.fs.fed.us/pubs/37274
• Norman, SP, WW Hargrove. 2012. Land surface phenology as a coarse-filter indicator of disturbance and climate effects across the coast redwood range. In: Standiford, Richard B.; Weller, Theodore J.; Piirto, Douglas D.; Stuart, John D., tech. coords. Proceedings of coast redwood forests in a changing California: A symposium for scientists and managers. Gen. Tech. Rep. PSW-GTR-238. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. pp. 657 - 665. https://www.treesearch.fs.fed.us/pubs/41344
• Norman, SP, WW Hargrove, JP Spruce JP, WM Christie, SE Schroeder 2013. Highlights of satellite-based forest change recognition and tracking using the ForWarn system. US Forest Service SRS-GTR-180. Asheville, NC. https://www.treesearch.fs.fed.us/pubs/44239
• Mills, RT, J Kumar, FM Hoffman, WW Hargrove, JP Spruce, SP Norman. 2013. Identification and visualization of dominant patterns and anomalies in remotely sensed vegetation phenology using a parallel tool for principal components analysis. Procedia Computer Science 18: 2396 - 2405.  https://www.treesearch.fs.fed.us/pubs/44286
• Norman, SP, FH Koch, WW Hargrove. 2016. Review of broad-scale drought monitoring of forests: Toward an integrated data mining approach. Forest Ecology and Management. 380: 346 - 358. https://www.treesearch.fs.fed.us/pubs/52499
• Norman, SP, WW Hargrove, WM Christie. 2017. Spring and autumn phenological variability across environmental gradients of Great Smoky Mountains National Park, USA. Remote Sensing. 9(5): 407 - 424.  https://www.treesearch.fs.fed.us/pubs/54132 
• Norman, Steven P.; Christie, William M. 2020. Chapter 7 - Satellite-based evidence of forest stress and decline across the conterminous United States for 2016, 2017, and 2018 (https://www.fs.usda.gov/treesearch/pubs/60387). In: Potter, Kevin M.; Conkling, Barbara L., eds. Forest health monitoring: national status, trends, and analysis 2019. Gen. Tech. Rep. SRS-250. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station: 151-166 (https://www.fs.usda.gov/treesearch/pubs/60380)

Presentations

• Toward a national Early Warning System for forest disturbances using remotely sensed land-surface phenology (Bill Hargrove, et al. 2012)
• Using land surface phenology for national mapping of the occurrence and health of evergreen and deciduous forests (evergreen/deciduous thrive/decline) (Bill Hargrove et al., International Association for Landscape Ecology Meeting, Apr. 2013)
• Predicting long-term wildfire effects across complex landscapes (Steve Norman, et al. USDA Forest Service Landscape Science Webinar, Oct. 2013)
• Detecting and tracking forest change in the Blue Mountains of Oregon and Washington using the ForWarn system (Steve Norman et al., Blue Mountains Forest Vegetation Workshop, Apr. 2014)
• Tracking forest and landscape change from space using the ForWarn system (Steve Norman et al., Southern Regional Forestry Extension Webinar, Oct. 2014) View this archived webinar at any time through forestrywebinars.net.
• Five applications of the ForWarn System for wildland fire management (Steve Norman et al., USDA Forest Service Rocky Mountain Research Station Webinar, May 2014)
• Recognizing gradual loss of forest resilience using continuous satellite-based monitoring (Steve Norman et al., Appalachian Society of American Foresters Meeting, Jan. 2015)
• The use of phenological completion milestones for determining day-of-year of Start-of-Greenup and Start-of-Senescence (Bill Hargrove, et al., Blue Ridge Parkway Science Meeting, Apr. 2015)
• Satellite-based monitoring of seasonal, successional and event fuels for fire planning (Steve Norman et al., Southern Blue Ridge Fire Learning Network Workshop, May 2015)

Posters

• High Frequency Monitoring of Fire Regimes and Ecological Resilience across the Okefenokee National Wildlife Refuge, 2015
• The tornado outbreak of April, 2011 recorded by the USDA Forest Service’s “Forest Change Assessment Viewer”
• A framework for predicting post-wildfire trajectories with desired conditions using NDVI time series
• Mapping hemlock decline in the Southern Appalachians using high and moderate resolution imagery

Awards and Recognition

• 2012--Southern Research Station Director's Award for Excellence in Science Delivery
• 2013--Southeast Region's Federal Interagency Partnership Award
• 2013--Federal Laboratory Consortium for Technology Transfer Interagency Partnership Award
• 2013--NASA Group Achievement Award
• 2013--Southern Research Station Director's Partnership Award
• 2013--Chief of the Forest Service's Honor Award for Efforts to Sustain Forests and Grasslands